What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

christies.com

https://christies.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

christies.com

Mobile

Sponsored

Hosting Provider

Christie's Inc

IP Address

65.51.86.15

Server Location

🇺🇸 Brooklyn, United States

ASN

AS54004

Organization

Christie's Inc

CDN

Akamai

WAF

Akamai

Nameservers

udns2.cscudns.org.udns1.cscudns.com.

Performance

Page Speed

1.3 MB

178 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

BigCommerce

Technology Stack

6 Technologies Detected

Analytics

Libraries

Other

CSS Frameworks

Advertising

SEO Analysis

A80/100

christies.comchristies.com

Christie’s | Fine Art, Luxury & Antiques Auctions

Christie’s is a world-leading art and luxury auction house. Renowned and trusted for its live and online auctions, as well as its bespoke private sales.

Title Length49 chars

Recommended: 50-60 chars

Description Length152 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

212 rules

Sitemap reference found

Sponsored

Security Score

36%Critical

Interactive

HTTPS

WAF

131d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

22.06.2025

Valid Until

23.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.christies.comchristies.com

SHA-256 Fingerprint

38:BB:F3:14:32:CA:51:88:24:8A:B3:B9:92:A4:08:A9:5D:2C:E5:16...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-type

text/html; charset=utf-8

pragma

no-cache

correlation-id

725de5d4-4370-49af-bee9-9b01d42d7477

x-ua-compatible

IE=Edge

accept-ch

Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform-Version, Sec...

x-frame-options

SAMEORIGIN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-00380302.gslb.pphosted.com

mxb-00380302.gslb.pphosted.com

Domain Information

christies.com

Domain Age

31y 1m

Created

03.01.1995

Expires

02.01.2032

Last Updated

12.08.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

ABCArizonaSerif + Helvetica

75/100

Readability

/30

40/40

16px · LH 1.43

Hierarchy

/20

8/25

1x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

ABCArizonaSerif

Serif16px

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~68 CPL

Optimal (45–75)

16px

64px

32px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Protected text on images: Using gradient for readability.

✅ Optimal line length: ~68 characters per line is comfortable to read.

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

dsl.assets.christies.com(4)assets.adobedtm.com(4)code.jquery.com(3)cdn.cookielaw.org(2)christies.com(1)

Sponsored

Last analyzed: 12 Feb 2026 at 22:08

Historical Analysis & Change Tracking